Monitor subinterfaces and get NetFlow statistics

[MMCiobanu]

Hi,

We have a PA-5020 and configured a few AGG interfaces with subinterface; recently, we installed a SolarWinds NTA to get NetFlow statistics, but I am not able to get anything from this device.

I have created a profile and applied to the subinterface through which the Internet traffic goes, but it does not send any information to the NetFlow collector.

Also, is there a way we can monitor the AGG and subinterfaces using SNMP?

We do manage the device with SNMP through the management interface and I can see the physical interfaces, but not the AGG and subinterfaces.

Thank you very much.

[HULK]

Hello MMCiobanu,

Could you please let me know the type of Netflow you have configured here.

With the exception of vendor specific variations of NetFlow, there are 2 different implementations of NetFlow:

• Standard Netflow: The standard NetFlow implementation will collect all IP traffic information.
• Sampled Netflow: Only 1 out of x packets is processed. For internet backbones is standard NetFlow to resource intensive, that's why they only collect samples instead of all the traffic.

The Palo Alto Networks firewall supports the standard NetFlow implementation.

Thanks

[HULK]

Hello MMCiobanu,

Prior to PAN-OS 6.0.0, NetFlow data could not be exported on a per-subinterface basis. Starting in PAN-OS 6.0.0, NetFlow data can be exported on a per-subinterface basis.

Bug 43280 - Exported Netflow Logs Aggregates Sub-interface Data

Thanks

[MMCiobanu]

It is standard netflow.

[MMCiobanu]

Will version 6 also enable monitoring AGG and subinterfaces? I believe, if the interface is not seen through SNMP from the device, the collector cannot get the Netflow information; not quite sure though.

[HULK]

Hello MMCiobanu,

PAN OS version 6.0.x will workfor monitoring AGG and subinterfaces.

Thanks

[MMCiobanu]

thank you very much; it looks like there are quite a few advantages to upgrade to 6.0

[MMCiobanu]

we have upgraded to 6.0.3, still not able to monitor the AGG and subinterfaces

[SimonBlackler]

We're in the same boat.

I'm incredibly surprised that PANOS has got to version 6 without support for subinterfaces and AE bundles via SNMP?!

This is pretty critical stuff...

[pulukas]

I agree that the snmp polling option really should be there.

The obvious work around is to pull the data from the connected port on the switch where other network vendors do give us this data.  (hint, hint to PA).

[ajbool]

SNMP polling for tunnel interfaces would be good too!

[pulukas]

Does anyone have the feature request numbers for these snmp updates?

FR####

I should send a vote off to my sales team while I'm thinking about it.

[hshah · Accepted solution]

Hello MMC,

As long as I know Netflow/SNMP are allowed only on Physical Interfaces.

Please find bellow mentioned FR No.

Netflow on Sub interfaces FR#3058

SNMP on Sub interfaces FR#780

Regards,

Hardik Shah

[SimonBlackler]

I've contacted ours re: FR780

Will let you know what they say when I hear back.

[pulukas]

Thanks hshah adding my vote too.